click Data/Sort, sort by Column A - ascending. If you have a table and want
the entire table sorted by last name, then you will need to select the entire
table before sorting, otherwise column A will get sorted, but the rest of
your data will remain as is.

Be sure to back up your data.

"Cathy ANDREWS" wrote:

I am using a XL Spreadsheet. I would like to convert the list of last names
in column A into alphabetic order.